pic: 2014 Offseason Drivetrain 2363 Triple Helix

[Electronica1]

Looks pretty cool. What is the approximate weight of the what is pictured?

Also, couldn't you just replace the set of wheels opposite of the drop down wheels (aka, the back wheels) with omni wheels and have a butterfly drive pretty easily from what you have?

[notmattlythgoe]

Originally Posted by Electronica1

Looks pretty cool. What is the approximate weight of the what is pictured?

Also, couldn't you just replace the set of wheels opposite of the drop down wheels (aka, the back wheels) with omni wheels and have a butterfly drive pretty easily from what you have?

As long as the robot was always sitting on the two sets of colson wheels yes, but in a pushing match you could get rocked back onto the omnis and lose some of your traction.

[Chris is me]

Here's a thought - what's stopping you from having the omni wheel module straddle the drive tube? You could use some delrin blocks to transmit forces applied to the module through the whole frame, which keeps the loads more manageable. As long as you have clearance for the shaft to pivot within your drive tube (doable with chain-in-tube and the right geometry) you might like a setup like that better.